I’ve wanted to make a clock since I first started dreaming of having my Glowforge, and finally the time has come for BETA 1.
It’s made from paper and powered by 2 RPM engine (rotations per minute). So the first gear step is a 1:2 reduction making the first gear turn at the same pace as a seconds hand. I never added a hand to that though. The next several gears are there to reduce the rotation to that of the minute hand (rotates 1:60 compared to the second hand). Then another couple of complicated parts to make the second hand and minute hand to be co-axial.
I used Fusion 360 to design it, and I used Matthias Wandels gear generator for the gears.
There were many prototypes along the way.
Using 2mm paper for a clock worked way better than I expected. The thing runs day in and and day out.
What didn’t work;
A 2 RPM motor does NOT turn 2 rotations per minute. I’m not sure how fast it turns, but the clock is off by half an our every day.
What comes next;
I’m getting a different motor - one that’s synchronized with the frequency of the power outlet, which should work much better.
And I’m remaking the entire thing out of really thin plywood. Probably not proofgrade, because that’s a bit too thick for my needs.
Let me know what you think!